Waves and Their Applications in Technologies for Information Transfer
- Physics
Here’s why blueberries aren’t blue — but appear to be
Blueberries actually have dark red pigments — no blue ones — in their skin. Tiny structures in the fruits’ waxy coat are what make them seem blue.
- Oceans
Analyze This: Climate change may worsen the spread of ocean noise
Some parts of the ocean may become five times as loud in the future.
- Earth
The weird sky glow called STEVE is really confusing scientists
Researchers are trying to figure out the recipe of atmospheric conditions that creates this aurora-like light show.
- Space
This space physicist uses radios to study eclipses
Nathaniel Frissell uses radio data to study how eclipses affect a layer of the atmosphere called the ionosphere.
- Physics
Physics explains why poured water burbles the way it does
The loudness of falling water depends on the height of the pour and the thickness of the stream.
- Physics
Scientists Say: Polarized light
Sunlight, lamplight and other lights are usually unpolarized. But passing light waves through filters can ‘polarize’ them.
- Physics
Neutrons are unveiling hidden secrets of fossils and artifacts
Images made with these particles have revealed details of dinosaur bones, mummies and more.
- Archaeology
Analyze This: Stonehenge’s ‘Altar Stone’ has mysterious origins
After a century of searching for the source of the Altar Stone, scientists have yet to figure out where ancient people got the rock.
- Physics
Heat makes water evaporate. Now it appears light can, too
In the lab, shining light on water made it evaporate faster. This never-before-seen effect, if real, might be happening naturally all around us.
- Oceans
Shading corals during midday heat can limit bleaching
Shading coral reefs during the sunniest part of the day may help corals survive marine heat waves.
- Physics
A new tool shows tiny changes in the ’24-hour’ length of a day
An underground instrument known as ‘G’ uses laser beams to measure Earth’s rotation — a gauge of day length — with extreme precision.
- Tech
How green is your online life?
From the manufacturing of our favorite devices to using them for social interactions, our digital lives can have a big climate impact.
